Those ratios provide clues about the temperature and salinity of the water in which the corals were immersed, Watanabe says.
2
海洋贝类的繁殖周期与营养物质储存、利用和环境因子（如海水温度、食物可得性、盐度等）密切相关。
The reproductive cycle of marine bivalves is closely related to cycles of nutrient storage and use and to environmental factors such as water temperature and food availability.
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